OilMan said:Isn't that basically what a fuller/BLOODGROOVE/I-beam does? I may be wrong.
I-beams and Fullers (which are "bloodgrooves") DO lighten the material without sacrificing strength, but don't involve holes in the material. I believe also, that it's not that I-beams are any STRONGER than full steel columns would be, but rather that they aren't WEAKER while saving weight and allowing flex.